1. 1/a^2n-b^2n + 1/a^n+b^n - 1/a^n-b^n2. a^n+b^n/a^2n+2a^n*b^n+b^2n + 1/a^n+b^n - 1/a^n

Daniil199511    3   28.04.2019 15:47    0